on thursday, benedict becomes the first pope to retire in 600 years. but he says he's not abandoning the church. instead, the 85-year-old will spend his days praying in a vatican city monastery. though he has cited age as the reason for his retirement, an italian newspaper suggests something more controversial: they say a network of gay priests at the vatican is being blackmaled by male prostitutes. >> a los angeles cardinal who will help elect the next pope is being questioned about pedophile priests during his time as the city's archbishop. church documents suggest cardinal roger mahony knew priests were sexually abusing children. but went out of his way to protect the priests from prosecution. mahony spent several hours in a deposition on saturday, answering questions about the sex abuse scandal. a petition effort is underway to keep mahony from being allowed to vote for the next pope. >> san francisco celebreated the year of the snake is a big way. as chinese new year celebrations took center stage in san francisco saturday night. this is video of